Use the same write selection rules for dfs and non-dfs environments.
Currently, kXR_delete selection incorrectly fails in dfs if the file
does not exist but correctly succeeds in non-dfs environments.
XrdCl: Add more convenient PropertyList::Get method
XrdCl: Make it possible for copy jobs to run in parallel
XrdApps: --parallel param of xrdcopy defaults to 1
XrdCl: Implement xrdcp --parallel
Pass correct size of buffer to avoid groupname truncation.
Update notes on unix patch. Add note regarding dfs patch (it got dropped).
XrdCl: Optimize performance of xrdcp uploads

CERN->Wigner before:
]==> xrdcp ./a048e67f-4397-4bb8-85eb-8d7e40d90763.dat root://p05614923h06774.cern.ch//tmp/`uuidgen`
[1000MB/1000MB][100%][==================================================][40MB/s]

CERN->Wigner after:
]==> xrdcp ./a048e67f-4397-4bb8-85eb-8d7e40d90763.dat root://p05614923h06774.cern.ch//tmp/`uuidgen`
[1000MB/1000MB][100%][==================================================][111.1MB/s]

CERN->CERN before:
]==> xrdcp ./a048e67f-4397-4bb8-85eb-8d7e40d90763.dat root://eospps.cern.ch//eos/ljanyst/cptest02/`uuidgen`
[1000MB/1000MB][100%][==================================================][76.92MB/s]

CERN->CERN after:
]==> xrdcp  ./a048e67f-4397-4bb8-85eb-8d7e40d90763.dat root://eospps.cern.ch//eos/ljanyst/cptest02/`uuidgen`
[1000MB/1000MB][100%][==================================================][104MB/s]
Correct cut/paste error the prevented a non-named plugin version from
being loaded. This fix provides proper plugin handling.
Provide a plugin interface for handling extended attributes.
XrdCl: Wait for all the chunks before destructing the target copy object
Make sure variables are initialized even when conditions never occur
that would cause uninitialized variables to be referenced to make
conservative compilers happy.
Utils: Add xrootd-config
RPM: Add xrootd-config
Utils: Allow for slashes in prefix subdirectories
Add comments to clarify the "drctv" argument and what it is used.
XrdCl: Make the plug-in manager use the new plugin loader
XrdCl: Load monitoring plug-ins using the plug-in loader
XrdClTests: Build versioned test monitoring plug-in
XrdCl: Make it possible for xrdcp to concatenate multiple sources to stdout

]==> xrdcp root://eospps.cern.ch//eos/ljanyst/testconcat/a048e67f-4397-4bb8-85eb-8d7e40d90763.dat root://eospps.cern.ch//eos/ljanyst/testconcat/b3d40b3f-1d15-4ad3-8cb5-a7516acb2bab.dat - | md5sum
Job: 1/2
Source: root://eospps.cern.ch:1094//eos/ljanyst/testconcat/a048e67f-4397-4bb8-85eb-8d7e40d90763.dat
Target: stdio://-
[1000MB/1000MB][100%][==================================================][90.91MB/s]
Job: 2/2
Source: root://eospps.cern.ch:1094//eos/ljanyst/testconcat/b3d40b3f-1d15-4ad3-8cb5-a7516acb2bab.dat
Target: stdio://-
[1000MB/1000MB][100%][==================================================][100MB/s]
2fcca11d452666b16fb46e29022dcccb  -

]==> cat a048e67f-4397-4bb8-85eb-8d7e40d90763.dat b3d40b3f-1d15-4ad3-8cb5-a7516acb2bab.dat | md5sum
2fcca11d452666b16fb46e29022dcccb  -